GaffFinder

London lettings, by the square foot

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Every London flat, measured.

The portals won’t let you rank by size. We read the floorplans, so you can.

18,726 flats measured

Best £/sqft£/m² first

2 listings · £4.78/sqft£51.45/m² median in SW10

Sizes are estimates: an AI model reads most of them from the floorplan, and it can be wrong — so can the £/sqft£/m² worked out from them. Check with the agent before you rely on one.

Property photo
Floorplan

2,544 sqft 236 m²

£5.50/sqft £59.20/m² 15% above SW10 median
£14,000/mo £3,500 each (if split by room) ◷ relisted 5×

Cheyne Walk, SW10

4 bed 2 bath Cremourne Estate

3 days on market Share Agent's site ↗
Property photo
Floorplan

2,539 sqft 236 m²

£14.77/sqft £158.98/m² 209% above SW10 median
£37,496/mo £9,374 each (if split by room)

Waterfront Drive, Chelsea

4 bed 4 bath Battersea

5 days on market Share Agent's site ↗

How we know the size

  1. 01

    We collect

    Every new flat to rent in London, checked through the day, seven days a week.

  2. 02

    We read the floorplan

    A vision model reads the plan the way you would — room by room, taking the dimensions printed on it. It is an AI estimate, and it can be wrong.

  3. 03

    We measure

    That gives a square footage, and a price per square foot. You can sort and filter on both. The portal offers neither.